PRESS RELEASE: GDM Highlights Coonambula JV Progress at Noosa Mining Conference

Latest Press Release

Great Divide Mining Ltd (ASX:GDM) CEO Justin Haines addressed an AMEC-hosted function ahead of the Noosa Mining Investor Conference, speaking to around 100 investors and industry representatives.

Mr Haines gave an overview of Great Divide Mining’s progress across its’ 5 projects, before turning his attention to the Company’s Coonambula Joint Venture with Dart Mining NL(ASX:DTM) – one of GDM’s key exploration priorities in Queensland.

“The Dart Team have been fabulous to work with,” he said. “They’ve significantly advanced the project in just the short period since the definitive Joint Venture agreement was announced in mid-June of 2025.”

Recent fieldwork at Coonambula has delivered exceptional Antimony-Gold results, including surface samples grading up to 65.3% Sb, 17.0 g/t Au, and 97.9 g/t Ag from the historic Banshee Mine area. Diamond drilling commenced in late September, with early holes intersecting significant zones of massive stibnite mineralisation at shallow depths. These results continue to reinforce the project’s strong potential as a near-term development opportunity within GDM’s critical-metals portfolio.

The Noosa Mining Investor Conference, held at Peppers Noosa Resort, remains one of Australia’s largest and most influential mining investment events drawing over 70 ASX-listed companies and over 2,500 attendees from across the nation’s resources and investment communities.

“It’s a credit to Phil Dickinson and his Team for running what must be Australia’s most successful mining conference – bringing together explorers, producers, financiers, and, most importantly, shareholders,” said Haines.

“In just two short years since listing when GDM first attended Noosa, we’ve advanced across all five of our projects and moved from being a pure explorer to now both an explorer and producer. Momentum is building across the portfolio, and we’re looking forward to sharing the next steps with our shareholders.”

“We wish the Noosa Mining Conference every success ! ” said Haines.

ENDS

Media Contacts:

Name: John KochanskiCompany: Great Divide MiningEmail: [email protected]Phone: 0411831122

Attachments:

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November 12, 2025/by Reland Pigte

About Great Divide Mining

For further information: Justin Haines, CEO e [email protected] m +61 (0)418 876 420 Great Divide Mining Ltd (ASX: GDM) Great Divide Mining is an Australian Gold, Antimony and critical metals miner, explorer and developer with five projects across 17 tenements (including two in application). GDM’s focus is on operating producing assets within areas of historical mining and past exploration with nearby infrastructure, thus enabling rapid development. Through a staged exploration and development programme, GDM intends to generate cash flow from its initial projects to support further exploration across its portfolio of highly prospective tenements. https://greatdividemining.com.au/ Dart Mining NL (ASX:DTM) The Triumph Gold Project is Dart’s first step into an advanced intrusion related gold system project in Queensland. Dart will look to develop a regional presence in Queensland through advanced stage intrusion related and epithermal gold projects. Dart is farming into the Coonambula Antimony-Gold Project in Central Queensland. Dart Mining will continue to evaluate several historic goldfields in Central and Northeast Victoria including the Rushworth Goldfield and the new porphyry and lithium province in Northeast Victoria identified by Dart. The area is prospective for precious, base, and strategic metals. Dart Mining has built a strategic and highly prospective gold exploration portfolio in Central and Northeast regions of Victoria, where historic surface and alluvial gold mining indicates the existence of potentially large gold endowment. https://dartmining.com.au/ Noosa Mining Conference The Noosa Mining Investor Conference is a highly valued and informative event held twice a year in Noosa, Q. Featuring ASX listed resource companies the event is attended by investors, brokers, senior company executives and fund managers from across Australia and projects from across the world. Considered by many as a 'must attend' event on the Australian resources calendar at last year’s conference some 65 listed companies made presentations and exhibited and over 2300 delegates attended either in-person or online. The Noosa Conference for 2024, will run from Wednesday 13th to Friday 15th November. https://www.noosaminingconference.com.au/ Contact: Phil Dickinson, Conference Convenor m: 0417 079 164 e: [email protected]

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